HOPE, Maine — Police say speed and poor tires were to blame for a Monday afternoon head-on crash on Route 17 that injured three people.

Jesse Martin of Union was issued a summons for two inadequate tires, according to Knox County Sheriff Donna Dennison. Martin also was issued a warning for failing to notify the secretary of state of a change of address on his driver’s license.

Martin was heading east in his 2004 Honda Civic when it slid across the centerline near the townline with Rockport and struck a 2008 Toyota Sienna heading west, according to the sheriff. The vehicles collided head on. The other vehicle was occupied by John Bettler, 73, and Merrie Bettler, 66, of Montville.

Union Ambulance and Camden First Aid were on scene and treated all three people involved. Martin complained of soreness, but was cleared at the scene for his injuries and was not taken to the hospital. The Bettlers were transported to Pen Bay Medical Center in Rockport for minor injuries.

All three were wearing their seat belts, the sheriff reported.

Road conditions and weather also were listed as factors in the crash, she said.

Martin’s Honda sustained more than $1,000 in damage to the front end. Bettler’s vehicle also sustained more than $1,000 in damage to the front end. Both vehicles had to be towed from the scene.